Sun, Moon, and Stars (Norenmin)

Three boys, were descended from the Stars, the sun, and the moon, all three were destined to meet each other, but their ancestors didn't think they would all fall in love with each other. The only thing they were destined to do was to balance out the world together, the only rule was to not fall in love, or else one or all would get banned from seeing each other. The three boys would meet each other one by one in different places but what if they had to go to the same school all together? How could they fall in love and balance out the world at the same time...